| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain the enjoyment of operation taking into account the operation support of a computer and the operation skill of a user himself/herself. <P>SOLUTION: After a batter B hits a ball, the height of the ball moving on a trajectory passing through present movement positions E1, E2, E3 and E4 or the like is judged. For example, future movement positions E11, E21, E31 and E41 each located on a time axis ahead of the present movement positions E1, E2, E3 and E4 are respectively indicated on the ground by elliptical marks M1, M2, M3 and M4. A peak P becomes a boundary and in the rising process of the ball, the mark is changed in a first color in an expanding direction and in the falling process of the ball, the mark is changed in a second color in a reducing direction. <P>COPYRIGHT: (C)2003,JPO</p> |
